Bicycle saddle position adjustment device using setting element of continuously variable length with threaded sleeve having right-handed and left-handed threads

摘要

The device allows the seating position of the bicycle saddle (15) to be adjusted via a setting element (21) of continuously variable length, pivoted to the bicycle frame (3) at one end and to a support strut (16) for the saddle at the opposite end, a force triangle (K) provided by a second angled support strut (17), the setting element and the part of the frame between the pivot linkages for the second angled support strut and the setting element. The setting element has a threaded sleeve with a right-handed thread and a left-handed thread, a threaded disc screwed to each end of the threaded sleeve, acting as an adjustment stop.